CN106019170A - Power adapter detecting device - Google Patents
Power adapter detecting device Download PDFInfo
- Publication number
- CN106019170A CN106019170A CN201610334416.6A CN201610334416A CN106019170A CN 106019170 A CN106019170 A CN 106019170A CN 201610334416 A CN201610334416 A CN 201610334416A CN 106019170 A CN106019170 A CN 106019170A
- Authority
- CN
- China
- Prior art keywords
- integrated circuit
- power supply
- outfan
- voltage
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
Abstract
A power adapter detecting device includes a first integrated circuit and a second integrated circuit. The first integrated circuit is provided with a power adapter interface and a first input terminal. The second integrated circuit has a first input terminal and a second input terminal. The first input terminal of the first integrated circuit is connected with the first output terminal of the second integrated circuit. The first input terminal of the second integrated circuit is connected with a battery. After a power adapter is connected to the first integrated circuit, voltage of the power adapter is transmitted to the second integrated circuit through the first integrated circuit. In this condition, the second integrated circuit can determine the power adapter access through the input voltage. No pins for power adapter connection need to specially reserve since the second integrated circuit is not connected to the power adapter directly, so that direct influence by voltage instability of the power adapter is avoided. Therefore, resources required for power adapter detection can be reduced and cost is reduced.
Description
Technical field
The present invention relates to electronic technology field, particularly to a kind of power supply adaptor detection device.
Background technology
Power supply adaptor (Power adapter) is the power supply conversion equipment of electronic equipment and electronic apparatus,
Commonly referred to charger.Generally comprise: shell, transformator, inductance, electric capacity, control integrated circuit (integrated
Circuit, IC), the device such as printed substrate (Printed Circuit Board, PCB) composition；Power supply is fitted
The function of orchestration is that exchange input is converted to direct current output；Direct Plug-In and desktop can be divided into by connected mode
Formula.
Handheld mobile communication device, such as: mobile phone, transmitter receiver etc., the most all can use and possess shutoff mould
The power supply control chip of formula.Shutdown mode can be opened when dispatching from the factory, disconnect between battery and system load
Connect, thus reach to save the purpose of electricity.Typically after entering shutdown mode, connect at power supply adaptor
Fashionable, it would be desirable to be able to automatically exit from shutdown mode.This just means that needs can detect that adapter accesses.
The most general way is that a reserved pin is specifically designed to detection power supply and fits on power supply control chip
Orchestration inserts.Owing to power supply adaptor is that 220V alternating current turns unidirectional current, when the input of power supply adaptor is subject to
Can cause, to interference (such as thunder and lightning), the change that exports by a relatively large margin, it is certain resistance to that this requires that this pin possesses
High pressure ability, causes chip design cost raise and can take extra resources of chip.
Summary of the invention
Embodiments provide a kind of power supply adaptor detection device, realize power adaptation for minimizing
Resource needed for device detection, reduces cost.
Embodiments provide a kind of power supply adaptor detection device, including:
First integrated circuit and the second integrated circuit；
Described first integrated circuit has power adaptor interface and the first outfan；Described second integrated
Circuit has the first outfan and first input end；
First outfan of described first integrated circuit connects with the first outfan of described second integrated circuit
Connecing, the first input end of described second integrated circuit is connected with battery；
After described power adaptor interface connects and has power supply adaptor, the first of described first integrated circuit
Outfan output voltage arrives the first outfan of described second integrated circuit, and described second integrated circuit exists
After first outfan of described second integrated circuit monitors described voltage, determine and have adapter to access.
In an optional implementation, described first integrated circuit also includes the second outfan and switch
Foot and field effect transistor；Described power supply adaptor detection device also includes: inductance；
The grid of described field effect transistor connects Input voltage terminal, and the drain electrode of described field effect transistor connects described the
First outfan of one integrated circuit；
One end of described inductance connects the source electrode of described field effect transistor, and the other end connects described switch foot.
In an optional implementation, described second integrated circuit is the of described second integrated circuit
One outfan monitors described voltage and includes:
Described second integrated circuit comprises comparator and the first resistance；
The reverse input end of described comparator connects reference voltage, and the input in the same direction of described comparator connects
One end of described first resistance, the other end of described first resistance connects the first of described second integrated circuit
Outfan；
When first outfan of described second integrated circuit has voltage, the first of described second integrated circuit
The voltage of outfan arrives the input in the same direction of described comparator through described first resistance, makes described comparator
Output signal changes.
In an optional implementation, described second integrated circuit also includes:
Second resistance, one end of described second resistance is connected to described first resistance and described second integrated electricity
Between first outfan on road, other end ground connection.
In an optional implementation, described second integrated circuit also includes:
Electro-static Driven Comb ESD protective device, one end of described ESD protective device is connected to described first resistance
And between the input in the same direction of described comparator, other end ground connection.
In an optional implementation, described second integrated circuit also includes:
Electric capacity；One end of described electric capacity is connected to the first of described first resistance and described second integrated circuit
Between outfan, other end ground connection.
In an optional implementation, described first integrated circuit includes: charge integrated circuit, institute
State the second integrated circuit to include: power supply controls integrated circuit.
In an optional implementation, described second integrated circuit also includes: switching device；
Described switching device original state is off-state, and one end of described switching device connects described power supply
Controlling the first input end of integrated circuit, the other end connects described power supply；
Described power supply controls integrated circuit and is determining have adapter to access, and turns on described switching device.
In an optional implementation, the first outfan of described second integrated circuit is described power supply
Controlling the voltage output pin of integrated circuit, described, the first input end of described second integrated circuit is institute
State power supply and control the voltage input pin of integrated circuit.
In an optional implementation, described power supply control integrated circuit also includes button detection and connects
Mouthful.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that power supply adaptor exists
After inserting the first integrated circuit, can be through the first integrated circuit conduction to the second collection from the voltage of power supply adaptor
Becoming circuit, the second integrated circuit connects as control circuit power supply；In this case, the second integrated electricity
Road can determine have power supply adaptor to access by the voltage of input.In this second integrated circuit,
Need not remain for the most in advance detecting the pin that power supply adaptor inserts, owing to the second integrated circuit is the most direct
It is connected to power supply adaptor, thus without directly being affected by power adapter voltage shakiness.Therefore,
The resource realized needed for power supply adaptor detection can be reduced, reduce cost.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below
The required accompanying drawing used is briefly introduced, it should be apparent that, the accompanying drawing in describing below is only this
Some bright embodiments, from the point of view of those of ordinary skill in the art, are not paying creative work
On the premise of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is embodiment of the present invention electrical block diagram；
Fig. 2 is embodiment of the present invention electrical block diagram；
Fig. 3 is embodiment of the present invention electrical block diagram；
Fig. 4 is embodiment of the present invention electrical block diagram；
Fig. 5 is embodiment of the present invention electrical block diagram.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this
Invention is described in further detail, it is clear that described embodiment is only that some of the present invention is implemented
Example rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
Do not make all other embodiments obtained under creative work premise, broadly fall into present invention protection
Scope.
Embodiments provide a kind of power supply adaptor detection device, as it is shown in figure 1, include:
First integrated circuit 100 and the second integrated circuit 200；
Described first integrated circuit 100 has power adaptor interface 101 and the first outfan 102；Institute
State the second integrated circuit 200 and there is the first outfan 201 and first input end 202；
The of first outfan 102 of described first integrated circuit 100 and described second integrated circuit 200
One outfan 201 connects, and the first input end 202 of described second integrated circuit 200 is connected with battery；
After described power adaptor interface 101 connects and has power supply adaptor, described first integrated circuit 100
First outfan 102 output voltage arrive described second integrated circuit 200 the first outfan 201, institute
State the second integrated circuit 200 and monitor described at the first outfan 201 of described second integrated circuit 200
After voltage, determine and have adapter to access.
In embodiments of the present invention, power supply adaptor is after inserting the first integrated circuit, from power supply adaptor
Voltage can through first integrated circuit conduct to the second integrated circuit, the second integrated circuit is as control circuit
Connect and have power supply；In this case, control circuit can determine there is power adaptation by the voltage of input
Device accesses.In this second integrated circuit, it is not necessary to special remaining in advance detects what power supply adaptor inserted
Pin, owing to the second integrated circuit is not directly connected to power supply adaptor, thus without directly by electricity
The impact of source adapter voltage instability.Therefore, it can reduce the resource realized needed for power supply adaptor detection,
Reduce cost.
Power supply adaptor is the circuit for charging the battery, and power adaptor interface would generally be arranged at pipe
The integrated circuit of reason charging.Power supply is the parts powered for equipment, and connected circuit as a rule can
It it is the integrated circuit for power management.
Based on described above, the first integrated circuit 100 can be as a rule the circuit of management charging, therefore
Stability and the controllability embodiment of the present invention in order to ensure the voltage of input equipment additionally provides following solution
Scheme: as in figure 2 it is shown, be the enlarged drawing of the first integrated circuit, described first integrated circuit 100 also wraps
Include the second outfan 104 and switch foot 105 and field effect transistor 106；Described power supply adaptor detection device
Also include: inductance 103；
The grid 107 of described field effect transistor 106 connects Input voltage terminal, the leakage of described field effect transistor 106
Pole connects the first outfan 102 of described first integrated circuit 100；
One end of described inductance 103 connects the source electrode of described field effect transistor 106, opens described in other end connection
Close foot 105.
The embodiment of the present invention additionally provides the most how the second integrated circuit monitors at its first outfan
The implementation of voltage is as follows: as it is shown on figure 3, described second integrated circuit 200 is described second integrated
First outfan 201 of circuit 200 monitors described voltage and includes:
Described second integrated circuit 200 comprises comparator 202 and the first resistance R1；
The reverse input end of described comparator 202 connects reference voltage (voltage reference, Vref),
The input in the same direction of described comparator 202 connects one end of described first resistance R1, described first resistance
The other end of R1 connects the first outfan 201 of described second integrated circuit 200；
When first outfan 201 of described second integrated circuit 200 has voltage, described second integrated electricity
The voltage of first outfan 201 on road 200 arrives the same of described comparator 202 through described first resistance R1
To input, described comparator 202 output signal is made to change.
Further, the embodiment of the present invention additionally provides the technical scheme protecting the second integrated circuit,
As follows: as it is shown on figure 3, described second integrated circuit 200 also includes:
Second resistance R2, one end of described second resistance R2 is connected to described first resistance R1 and described the
Between first outfan 201 of two integrated circuits 200, other end ground connection.
In the present embodiment, the second resistance and the first resistor group become bleeder circuit, prevent the second integrated circuit
The first output end voltage too high second integrated circuit is worked the mischief.
Further, the embodiment of the present invention additionally provides the technical scheme of electrostatic protection, specific as follows: as
Shown in Fig. 3, described second integrated circuit 200 also includes:
Electro-static Driven Comb (Electro-Static discharge, ESD) protection device D, described ESD protector
One end of part D is connected between described first resistance R1 and the input in the same direction of described comparator 202, separately
One end ground connection.
Further, the embodiment of the present invention additionally provides the technical scheme filtering miscellaneous signal minimizing error detection,
Specific as follows: as it is shown on figure 3, described second integrated circuit 200 also includes:
Electric capacity C；One end of described electric capacity C is connected to described first resistance R1 and described second integrated circuit
Between first outfan 201 of 200, other end ground connection.
Based on a most probable application scenarios, described first integrated circuit 100 is charge integrated circuit,
Described second integrated circuit 200 controls integrated circuit for power supply.
Based on above most probable application scenarios, described second integrated circuit 200 also includes: switching device；
Described switching device original state is off-state, and one end of described switching device connects described power supply
Controlling the first input end 202 of integrated circuit, the other end connects described power supply；
Described power supply controls integrated circuit and is determining have adapter to access, and turns on described switching device.
In the present embodiment, when switching device disconnects, power supply and equipment are disconnected, and now power supply is no longer
Equipment is powered, it is simple to do not use the scene of equipment for a long time, such as: long-distance transport, storage etc..
Based on above most probable application scenarios, the first outfan 201 of described second integrated circuit 200
The voltage output pin of integrated circuit is controlled for described power supply, described, described second integrated circuit 200
First input end 202 is the voltage input pin that described power supply controls integrated circuit.
Based on above most probable application scenarios, described power supply controls integrated circuit and also includes button detection
Interface.
Based on described above, following example will be with described first integrated circuit as charge integrated circuit, institute
Stating the second integrated circuit is, as a example by power supply controls integrated circuit, to be illustrated.
As shown in Figure 4, power supply controls IC input (that is: input voltage VIN) and connects battery,
Arriving output (that is: voltage output VOUT) pin behind inside, VOUT connects charging IC.Even
Connect power supply adaptor outfan.Button pin (Key) is used for receiving push button signalling.
The embodiment of the present invention, the VOUT utilizing power supply to control IC realizes the access detection of power supply adaptor.
Specific as follows: when power supply adaptor accesses, charging IC starts working and exports a default voltage, with
Time can attempt to detect battery thus control the VOUT foot of IC to power supply and power, VOUT is internal just can be examined
Measure the input of a voltage.Owing to during this, power supply controls to be to close between VIN and VOUT of IC
Breaking, the voltage of power supply also can not be injected into VOUT end by inside.So now confirming VOUT
End raised voltage i.e. can determine that power supply adaptor has accessed.In the present embodiment, VOUT pin has
Power supply adaptor detection function (that is: voltage input detection function, TA_Det)
In the present embodiment, power supply controls the VOUT pin inner portions of IC can do ripple filtration, to prevent by mistake
Trigger, referring particularly to shown in Fig. 5.
Power supply controls the VOUT pin of IC and connects power path and power supply adaptor testing circuit.Power supply
A switching device is had to control conducting and the shutoff of VOUT Yu VIN on path.In power path conducting
In the case of, it is not necessary to do the detection of power supply adaptor.Only just it is to be appreciated that be after power path disconnects
No have power supply adaptor to access.Therefore, the application scenarios of the embodiment of the present invention is after power path disconnects
Detect that power supply adaptor inserts, afterwards can be with turn on automatically power path.
When power path disconnects, do not have at VOUT pin in the case of not having power supply adaptor to access
Voltage.After power supply adaptor accesses, VOUT pin can receive a voltage, and this voltage passes through
Comparator input in the same direction is arrived after resistance R1, so that the triggering signal of comparator output is uprised by low,
This signal is delivered to just trigger power path conducting after power supply controls IC control module.
In Figure 5, Vref is that power supply controls the internal reference voltage produced of IC, is connected to comparator reverse
Input.
Electric capacity C and R1 composition RC (resistance capacitance) filtering, can leach the miscellaneous signal of VOUT, in order to avoid
Cause error detection；That is: ripple filters.
Resistance R2 Yu R1 forms bleeder circuit, prevent outside be input to VOUT pin overtension and
Burn out power supply and control IC.
Diode D is that Electro-static Driven Comb (Electro-Static discharge, ESD) protects device, protection
VOUT port is from electrostatic damage.
These are only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, can in the technical scope that the embodiment of the present invention discloses
The change readily occurred in or replacement, all should contain within protection scope of the present invention.Therefore, the present invention
Protection domain should be as the criterion with scope of the claims.
Claims (10)
1. a power supply adaptor detection device, it is characterised in that including:
First integrated circuit and the second integrated circuit；
Described first integrated circuit has power adaptor interface and the first outfan；Described second integrated
Circuit has the first outfan and first input end；
First outfan of described first integrated circuit connects with the first outfan of described second integrated circuit
Connecing, the first input end of described second integrated circuit is connected with battery；
After described power adaptor interface connects and has power supply adaptor, the first of described first integrated circuit
Outfan output voltage arrives the first outfan of described second integrated circuit, and described second integrated circuit exists
After first outfan of described second integrated circuit monitors described voltage, determine and have adapter to access.
Power supply adaptor detection device the most according to claim 1, it is characterised in that described first collection
Circuit is become also to include the second outfan and switch foot and field effect transistor；Described power supply adaptor detection device
Also include: inductance；
The grid of described field effect transistor connects Input voltage terminal, and the drain electrode of described field effect transistor connects described the
First outfan of one integrated circuit；
One end of described inductance connects the source electrode of described field effect transistor, and the other end connects described switch foot.
Power supply adaptor detection device the most according to claim 1, it is characterised in that described second collection
Become circuit to monitor described voltage at the first outfan of described second integrated circuit to include:
Described second integrated circuit comprises comparator and the first resistance；
The reverse input end of described comparator connects reference voltage, and the input in the same direction of described comparator connects
One end of described first resistance, the other end of described first resistance connects the first of described second integrated circuit
Outfan；
When first outfan of described second integrated circuit has voltage, the first of described second integrated circuit
The voltage of outfan arrives the input in the same direction of described comparator through described first resistance, makes described comparator
Output signal changes.
Power supply adaptor detection device the most according to claim 3, it is characterised in that described second collection
Circuit is become also to include:
Second resistance, one end of described second resistance is connected to described first resistance and described second integrated electricity
Between first outfan on road, other end ground connection.
Power supply adaptor detection device the most according to claim 3, it is characterised in that described second collection
Circuit is become also to include:
Electro-static Driven Comb ESD protective device, one end of described ESD protective device is connected to described first resistance
And between the input in the same direction of described comparator, other end ground connection.
Power supply adaptor detection device the most according to claim 3, it is characterised in that described second collection
Circuit is become also to include:
Electric capacity；One end of described electric capacity is connected to the first of described first resistance and described second integrated circuit
Between outfan, other end ground connection.
7. according to power supply adaptor detection device described in claim 1 to 6 any one, it is characterised in that
Described first integrated circuit includes: charge integrated circuit, and described second integrated circuit includes: power supply controls
Integrated circuit.
Power supply adaptor detection device the most according to claim 7, it is characterised in that described second collection
Circuit is become also to include: switching device；
Described switching device original state is off-state, and one end of described switching device connects described power supply
Controlling the first input end of integrated circuit, the other end connects described power supply；
Described power supply controls integrated circuit and is determining have adapter to access, and turns on described switching device.
Power supply adaptor detection device the most according to claim 7, it is characterised in that
First outfan of described second integrated circuit is that the voltage output of described power supply control integrated circuit is drawn
Foot, described, the first input end of described second integrated circuit is the voltage that described power supply controls integrated circuit
Input pin.
Power supply adaptor detection device the most according to claim 7, it is characterised in that
Described power supply controls integrated circuit and also includes button detection interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334416.6A CN106019170B (en) | 2016-05-18 | 2016-05-18 | A kind of power supply adaptor detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334416.6A CN106019170B (en) | 2016-05-18 | 2016-05-18 | A kind of power supply adaptor detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106019170A true CN106019170A (en) | 2016-10-12 |
| CN106019170B CN106019170B (en) | 2019-04-09 |
Family
ID=57094951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610334416.6A Active CN106019170B (en) | 2016-05-18 | 2016-05-18 | A kind of power supply adaptor detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106019170B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019237331A1 (en) * | 2018-06-15 | 2019-12-19 | Oppo广东移动通信有限公司 | Adapter aging detection method and apparatus for device to be charged |
| WO2019237330A1 (en) * | 2018-06-15 | 2019-12-19 | Oppo广东移动通信有限公司 | Adapter aging detection method and apparatus for device to be charged |
| CN110850216A (en) * | 2019-11-27 | 2020-02-28 | 桃江凤冠电机有限公司 | Detection device and detection method for power adapter |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320080A (en) * | 2007-06-06 | 2008-12-10 | 凹凸电子（武汉）有限公司 | Apparatuses and methods for detecting power source |
| CN101383627A (en) * | 2007-09-04 | 2009-03-11 | 大唐移动通信设备有限公司 | Device and method for terminal charger charging, USB charging and data communication |
| CN102854966A (en) * | 2012-08-15 | 2013-01-02 | 天地融科技股份有限公司 | Electronic equipment and power management circuit |
| CN202797874U (en) * | 2012-07-03 | 2013-03-13 | 青岛海信移动通信技术股份有限公司 | Over-voltage protection circuit and mobile terminal |
| CN103259306A (en) * | 2008-04-10 | 2013-08-21 | 立锜科技股份有限公司 | Circuit and method for detecting existence of battery on charger |
| CN103633709A (en) * | 2013-12-11 | 2014-03-12 | Tcl通讯（宁波）有限公司 | Charge recognition system and method |
| CN103715726A (en) * | 2012-09-29 | 2014-04-09 | 联芯科技有限公司 | Charging apparatus and method for AC charger |
| KR20140050222A (en) * | 2012-10-18 | 2014-04-29 | 콘티넨탈 오토모티브 시스템 주식회사 | Monitoring apparatus about output voltage of regulator and performance of analog-digital converter |
| CN103762702A (en) * | 2014-01-28 | 2014-04-30 | 广东欧珀移动通信有限公司 | Charging device of electronic equipment and power adapter of charging device |
| CN104360191A (en) * | 2014-11-14 | 2015-02-18 | 惠州Tcl移动通信有限公司 | Device and method for detecting plug-in and pull-out of charger |
| TW201525500A (en) * | 2013-12-10 | 2015-07-01 | Hon Hai Prec Ind Co Ltd | Adjusting device for power supply |
-
2016
- 2016-05-18 CN CN201610334416.6A patent/CN106019170B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320080A (en) * | 2007-06-06 | 2008-12-10 | 凹凸电子（武汉）有限公司 | Apparatuses and methods for detecting power source |
| CN101383627A (en) * | 2007-09-04 | 2009-03-11 | 大唐移动通信设备有限公司 | Device and method for terminal charger charging, USB charging and data communication |
| CN103259306A (en) * | 2008-04-10 | 2013-08-21 | 立锜科技股份有限公司 | Circuit and method for detecting existence of battery on charger |
| CN202797874U (en) * | 2012-07-03 | 2013-03-13 | 青岛海信移动通信技术股份有限公司 | Over-voltage protection circuit and mobile terminal |
| CN102854966A (en) * | 2012-08-15 | 2013-01-02 | 天地融科技股份有限公司 | Electronic equipment and power management circuit |
| CN103715726A (en) * | 2012-09-29 | 2014-04-09 | 联芯科技有限公司 | Charging apparatus and method for AC charger |
| KR20140050222A (en) * | 2012-10-18 | 2014-04-29 | 콘티넨탈 오토모티브 시스템 주식회사 | Monitoring apparatus about output voltage of regulator and performance of analog-digital converter |
| TW201525500A (en) * | 2013-12-10 | 2015-07-01 | Hon Hai Prec Ind Co Ltd | Adjusting device for power supply |
| CN103633709A (en) * | 2013-12-11 | 2014-03-12 | Tcl通讯（宁波）有限公司 | Charge recognition system and method |
| CN103762702A (en) * | 2014-01-28 | 2014-04-30 | 广东欧珀移动通信有限公司 | Charging device of electronic equipment and power adapter of charging device |
| CN104360191A (en) * | 2014-11-14 | 2015-02-18 | 惠州Tcl移动通信有限公司 | Device and method for detecting plug-in and pull-out of charger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019237331A1 (en) * | 2018-06-15 | 2019-12-19 | Oppo广东移动通信有限公司 | Adapter aging detection method and apparatus for device to be charged |
| WO2019237330A1 (en) * | 2018-06-15 | 2019-12-19 | Oppo广东移动通信有限公司 | Adapter aging detection method and apparatus for device to be charged |
| CN110850216A (en) * | 2019-11-27 | 2020-02-28 | 桃江凤冠电机有限公司 | Detection device and detection method for power adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106019170B (en) | 2019-04-09 |
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